Blower Fan Not Working On Ac

The relay board provides voltage to many components of the air conditioner including the fan motor.

Fan club prints. The fan doesnt run well. A quick easy way to trouble shoot most fa. If you notice a humming sound and your ac compressor isnt working it could be that the compressor is attempting to access the capacitor only the capacitor is faulty.

Bring broad knowledge of electricity and specific knowledge of the use of electrical testing equipment. You mentioned the ac doesnt quite turn on well. If the relay board isnt working properly the fan might not run.

Observe safety precautions while working with. The blower motor starts. Discussing relay andor control board problems powering the blower motor on electric air handlers and gas furnaces.

Its a wonderful thing in the heat of summer when you can go inside and feel the relief from a hot sticky summer day. Blower wont work on central air. The ac capacitor provides power to the compressor outer fan and the blower motor.

A wiring diagram for the specific vehicle is also helpful. When the homes thermostat detects that the living space is warmer than its programmed temperature level a cooling cycle begins. Does the ac turn on at all.

If it does not that fan not running right may just be a symptom not the cause. In this hvac troubleshooting video i go over the top 10 reasons why the blower fan motor is not starting in a furnace air handler or packaged unit for air. As explained in the hvac blower motor guide an air conditioner blower motor and assembly is basically the fan inside the air conditioning system that forces the cooled air via the ac cooling coil through the vents and into the room space that is being conditionedthis makes the air conditioner blower motor assembly one of the most important parts of your air conditioning system.

Before replacing the board make sure you check more commonly defective partsparticularly the fan motor capacitor and the fan motor itself. To determine the cause of a blower fan failure isolate the motor and perform some basic electrical tests. Wouldnt want to suggest throwing parts at it.

Looking at that schematic again i almost doubt it is the fan even.